View larger. | NASA’s Galileo spacecraft captured this view of the ‘spider’ on Europa – one…
Category: Earth Sky
No ocean on Titan? New research reveals slushy ice world
View larger. | Artist’s illustration of the Cassini spacecraft during a flyby of Titan. Previous analysis…
Earth’s radio bubble marks how far our signals have traveled
This image shows how far Earth’s radio broadcasts traveled across our Milky Way galaxy. No, not…
See the top 10 stories of 2025 from EarthSky
View larger. | The Hubble Space Telescope captured this image of the interstellar comet 3I/ATLAS on…
Solar wind ‘U-turn’ spotted by Parker Solar Probe
These images of our star’s solar wind, captured by NASA’s Parker Solar Probe, show a phenomenon…
Earth’s atmosphere sheds onto the moon!
This illustration shows how the solar wind (red) strips ions (blue) from Earth’s upper atmosphere. Some…
Weird, ultra-hot, double-tailed planet surprises scientists
View larger. | Artist’s concept of the double-tailed planet WASP-121 b. The tails span nearly 60%…
Researchers question methane atmosphere on TRAPPIST-1e
Artist’s concept of exoplanet TRAPPIST-1e, about 40 light-years from Earth. A new study urges caution when…
Astronomers create 1st map of the sun’s outer boundary
Artist’s concept of the boundary in the sun’s atmosphere, where the speed of the outward solar…
Astronomers see monster stars from the cosmic dawn
Artist’s concept of a massive star. Did monster stars create the supermassive black holes astronomers see…